Unlike critics who write about film or food or music, book critics are rarely required to engage with popular material. Critics ignore the books that people are actually reading; readers ignore the critics and the books they tout; everyone goes home happy.
But, every once in a while, a literary novel becomes tremendously popular, transcending the typical sales for literary fiction and making its way onto bestseller lists. About 15 years ago, books might have gotten a boost from Oprah's endorsement; these days, it's word of mouth that propels lucky titles - a magical synchronicity that publicists try to plot and editors pray for that gets not only devoted readers but casual ones to give a long, literary novel a try.